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of 52
 
Phase
You can switch phase (normal, reverse) for
each speaker units input signal. When the
continuity of sound between speakers is im-
precise, try switching phase. This may improve
the continuity of sound between speakers.
Points concerning network adjustments
Cut-off frequency adjustment
! With the low-range speaker installed in the
rear tray, if you set Low LPF cut-off fre-
quency high, bass sound is separated so
that it appears to come from the rear. You
are recommended to set Low LPF cut-off
frequency to 100 Hz or lower.
! The maximum input power setting for mid-
dle-range and high-range speakers is
usually lower than low-range speakers.
Please be aware that if the Mid HPF or
HighHPF cut-off frequency is set lower
than required, strong bass signal input
may damage the speaker.
Level adjustment
The basic frequencies of many musical instru-
ments are in the middle range. First perform
middle-range level adjustment, followed by
high-range and then low-range level adjust-
ment in that order.
Slope adjustment
! If you set a small absolute value for the
slope (for a gentle slope), interference be-
tween adjacent speaker units can easily re-
sult in degraded frequency response.
! If you set a large absolute value for the
slope (for a steep slope), continuity of
sound between speaker units is degraded,
and sounds appear to be separated.
! If you set the slope to 0 dB/oct. (pass), the
audio signal bypasses the filter, so the filter
does not have an effect.
Phase adjustment
When the cross-over point value for filters on
both sides is set to 12 dB/oct., the phase is
reversed 180 degrees at the filter cut-off fre-
quency. In this case, reversing the phase as-
sures improved sound continuity.
Normal phase
Reverse phase
Crossover point
Muting the speaker unit (filter)
You can mute each speaker unit (filter). When
a speaker unit (filter) is muted, no sound is
outputted from that speaker.
! If you mute the selected speaker unit (fil-
ter), MUTE blinks and no adjustments are
possible.
! Even if any speaker unit (filter) is muted,
you can adjust the parameters for other
speaker units (filters).
1 Use M.C. to select NW 1.
Refer to Introduction of audio adjustments on
page 20.
2 Turn LEVER to select the speaker unit
(filter) to be adjusted.
Low LPF (low-range speaker LPF)Mid HPF
(middle-range speaker HPF)Mid LPF (mid-
dle-range speaker LPF)HighHPF (high-range
speaker HPF)
3 Press M.C. to mute the selected speaker
unit (filter).
MUTE blinks in the display.
# To cancel the muting, press M.C. again.
Adjusting network
1 Use M.C. to select NW 1.
Refer to Introduction of audio adjustments on
page 20.
En
24
Section
02
Operating this unit